How to troubleshoot a faulty starter on an Audi 80?

My Audi 80 is having trouble starting and I suspect it may be a faulty starter. What are the steps I can take to diagnose and fix this issue efficiently?

First, check the connections on your starter to make sure they are secure and free of corrosion. Then, use a multimeter to check for voltage in the starter circuit. If there is no voltage, it may be a faulty starter relay.

If your starter is making a clicking noise, it could be a sign of a faulty solenoid. To test this, have someone turn the key while you tap on the solenoid with a hammer. If the car starts, it's likely a worn out solenoid that needs to be replaced.